Speed-regulator for explosive-engines.



Patented Dec. l0, l90l.

6. AMONSEIL.

SPEED REGULATOR F08 ,EXPLOSIVE ENGINES.

(Application filed Inn. 7, 1901.)

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No. 688,377. Patented Dec. l0, l90l.

G. AMUNSEN. SPEED REGULATOR FOR EXPLOSIVE ENGINES.

(Application filed ian. 7. 1901.) (In Model.) 5 Sheets-Shoat 2.

' Z/Zr'iiwafiea. give/gar 2; r monaelz. ,Jg 7Z2): lffiorrnayq No. 688,377. Patented Dec. l0, I90I.

G. AMONSEN. SPEED BEGULATUR FOR EXPLOSIVE ENGINES.

(Application filed Jan. 7, 1901.) (No Model.) 5 Sheets-Sheet a.

flfziinwws. Jae/anion No. 688,377. Patented Dec. l0, l90l. a. AMONSEN. SPEED REGULATOR FOR EXPLOSIVE ENGINES.

(Application filed Jan. 7, 1901-) 5 Sheets-Shut 4.

(No Model.)

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No. 688,377.. Paten t ed Deg. l0, l90l G. AMUNSEN.

SPEED REGULATOR FOR EXPLDSIVE ENGINES.

A li ation filed 3m 7, 1901.) el. 5 Shoe tttttttt 5.

I Q Zl/Zkinssea 2752/0222): x21 g I, wO ZL'MMW "UNITED STATES" PATENT OFFI ard or other suitable constructions.

GILBERT AMONSEN, OF MINNEAPOLIS, MINNESOTA.

SPEED-REGULATOR FOR EXPLOSlVE-ENGINES.

SPECIFICATION forming part of Letters Patent No. 688,377, dated December 10, 1901.

Application filed January 7, 1901. Serial No. 42,270. (No model.) 7 I To a whom it may concern-.

Be it known that I, GILBERT AMONSEN, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Explosive-Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the Same.

My invention relates especially to explosive-engines, and has for its object to provide an improved gear or motion-transmitting device for actuating the valve or valves and the igniter or sparking device.

To the-above ends the invention consists of the novel devices and combinations. of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

- Figure 1 is a plan view showing the explosive-engine with my improved gear or motion device applied in working position thereto. Fig. 2 is a view, partly in plan and partly in horizontal section, approximately on the line 90 m of Fig. 3. Fig. 3 is a view, partlyin ele vation and partly in vertical section, on the line a x of Fig. 1. Fig.4 is a perspective view showing in detail the so-called camring. Fig. 5 is a vertical section taken on the line 00 of Fig. 1; and Figs. 6 and 7 are views principally in diagram, but partly in section,illustrating the action of the members of the intermittent clutch.

The numeral 1 indicates the bed-frame; the numeral 2, the cylinder; the numeral 3, the mixing-chamber; the numeral 4, the crankshaft, and the numerals 5 the fly-wheels of an explosive-engine of ordinary construction.

So far as this invention is concerned both the igniter or sparking device andthe admis sion-valve for controlling the inlet of the explosive mixture may be of any of the stand- Hence for the purposes of this case it isonly necessary'to note the stem 6 of the admissionvalve, the inward movement of which serves to open the normally closed admission-valve,

and the crank 7, the rocking movement of which closes the circuit between the electrodes of the igniter in the ordinary manner well understood.

The numeral 8 indicates a vibrating arm or support,'which is pivoted at its lower end by a stud 9 to an adjacent portion 1 of the bedcasting 1. At its upper free end this support 8 is provided with a segmental slot 10,through which the crank-shaft 4 is passed, and surrounding this slot 10 and the shaft 4 said support is provided with a laterally-projecting sleeve or bearing-hub 11, hereinafter called, on account of the function which it performs, the eccentric hub. As shown, a stud 12 on the frame portion 1" works in a slot 13 of said support of arm 8 to limit the vibrating move ments of the same. Loosely mounted on the eccentric hub 11 is a cam-ring 14, which, as shown, is formed with a pair of diametrically opposite internal lugs 15 and with diametrically opposite external cams 16 and 17, which cams are offset in different planes. As shown, the cam-ring 14 is held against lateral movement on the eccentric hub 11 by a retaining-plate 18, suitably secured to said hub.

Mounted to rotate with the crank-shaft 4, butheld toslide, thereon by means of a key 19, is a driving-ring 20, provided on its inner face with a laterally projecting segmental driving-lug 21, which is adapted, under considerations hereinafter noted, to intermittently and alternately engage the lugs 15 of the cam-ring or driven member 14.

The driving-ring 20 is connected, as shown, by a link 22 to one arm of a bell-crank 23, which bell-crank is pivoted at 24 to one arm of the adjacent fly-wheel 5 and is provided with a weight 25, which, as shown, is connected by a spring 26 to the hub of said fly-wheel.

The said bell-crank, weight, and spring constitute a governor, and the said spring 26, I

of the frame 1. The shorter ends of the levers 27 and 28, respectively, act upon the forward ends of long plungers 31 and 32, suitably mounted in the said bearing-bracket 30 and in another bearing 33, secured on the cylinder end of the bed-frame 1. Springs 34 and 35, respectively, on the plungers or rods 31 and 32, yieldingly press the free ends of the bell-crank levers 27 and 28 against the peripheral surface of the cam-ring l4 and normally hold the said cam-ring with a yielding friction-brake action. The rear end of the plunger or rod 32 stands in position to act upon the valve-stem 6, and the rear end of the plunger or rod 31 is so connected to or positioned for action on the crank or arm 7 of the igniter that the rearward movement of said plunger will rock said arm and cause contact between the electrodes of the sparking device in the ordinary manner.

Preferably means will be provided whereby the rocking arm or support 8 may be shifted from the cylinder end of the engine. Hence, as shown, an operating-rod 36 is pivotally connected to the said arm or support and extended, as shown, to a point below and beyond the mixing-chamber 3, at which point, if desired, a suitable lock may be provided for positively locking the said arm or support in whatever position it may be set.

The driving-ring 20, the driven cam-ring 14, and the eccentric hub 11 constitute what may be termed an intermittent clutch. This clutch was especially designed to produce the two-to-one motion required in a fourcycle explosive-engine. To produce this twoto-one action, the supporting-arm 8 should be shifted into the one or the other of its extreme positions, so as to set the eccentric hub 11 at the proper eccentricity with respect to the axis of the crank-shaft 4.

\Ve will assume for our first illustration that the supporting-arm 8 and its hub 11 are set in the positions relative to the shaft indicated in Figs. 2, 5, and G and that the said shaft is running in the direction indicated by the arrows marked thereon. By reference particularly to Fig. 6 it will be noted that in the position illustrated the driving-lug 21 of the driving-ring 20 has in virtue of the eccentricity of the parts just passed out of the path of movement of the lugs 15 of the driven camring 14, and, having just cleared the previously-engaged lug, has left the said cam-ring standing idle. As the said driving-ring 20 and its lug 21 complete the next half-rotation the said lug engages the other lug 15 and positively imparts to the said driven cam-ring a one-half rotation, whereupon the driving-lug leaves the engaged lug 15 in the position previously occupied by the diametrically opposite lug 15. In this way an intermittent motion is imparted to the cam-ring 14, and the said cam-ring is driven one complete rotation for every two complete rotations of the driving-ring 20 and crank-shaft 4. The cam 16, which acts upon the cam-lever 27, is so timed with respect to the movements of the crankshaft that the sparking device will be actuated and the explosion produced when the crank-shaft is approximately fifteen degrees back of the dead-center, and the diametrically opposite cam 17 is so set for action on the cam-lever 28 that the admission-valve will begin to let in a fresh charge of the explosive mixture when the crank-shaft is in approximately the same position, but of course during an alternate rotation. These exact relations may of course be varied at will. To reverse the action of the engine or to cause the same to run in a reverse direction, it is only necessary to shift the supporting-arm 8 and the eccentric hub 11 into the position indicated in Fig. 7, whereupon the previously idle end of the segmental lug 21 will act upon the previously idle sides of the lugs 15 with the same relative action as pre viously described.

The above-described actions all assume that the speed of the engine does not exceed that for which the governor is set to remain inactive. lVhen such speed is exceeded by the engine, the governor will slide the driving-ring 20 outward into an inoperative position, so that the admission of the explosive mixture to the cylinder of the engine and the explosion of the same are interrupted until the speed of the engine has again been reduced, so as to render the driving-ring again active.

It will of course be understood that the socalled intermittent clutch above described is capable of considerable modification within the scope of my invention and that it is capable of general use wherever the intermittent motion of the character above described or of a similar character is required.

In the drawings the driving-lug 21 of the driving-ring 20 extends one hundred and eighty degrees, and it is obvious that if extended slightly less it will work between the diametrically opposite lugs 15 of the driven ring 14. This would permit the driving-ring 20 to be set to run on an axis concentric with the axis of the driven cam-rin g 14. When so set, continuous engagement would be kept up between the lugs of the driving and driven rings or members, and the device could then be used in connection with a two-cycle ex plosion-engine, or with asteam-engine for that matter, and by the proper adjustments of the supporting-arm 8 and eccentric hub 11 the engine would be made reversible. Hence it will be understood that the vibrating or shiftable bearing-hub 11 and so-called cam-ring 14 are capable of many modifications within the scope of my invention and are capable of use in connection with various mechanisms.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. Anintermittentclutch comprisingadriving member and a driven member mounted to rotate on eccentrically-located axes and provided, the former with a driving-lug and the latter with a diametrically-spaced pair of driving lugs or shoulders mounted to move into and out of the pa'thof movement of the lug of said driving member, whereby a oneto-two intermittent movement is imparted to the said driven member. 7

members movable eccentrically into and outof engagement, said driven member being provided with cams for imparting motion to the valve and the igniting device, substantially as described.

3. In a fourcycle explosive-engine, the combination with a constantly-runnin g shaft, of a driving clutch ring or member movable on an axis concentric with the axis of said shaft and provided with a driving-lug, an adjustable eccentric hub or bearing movable into eccentric positions on the opposite sides of the axis of said shaft, a driven clutch ring or member mounted on said hub and provided with a diametrically-spaced pair of lugs movable into and out of the path of movement of the lug of saiddriving ring or member and having the cams 16 and 17 on its exterior and an admission-valve and igniter actuated by said cams on said driven ring or member, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

GILBERT AMONSEN.

Witnesses:

HARRY KILeoRE, F. D. MERCHANT. 

